首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   3943篇
  免费   61篇
  国内免费   2篇
教育   2941篇
科学研究   246篇
各国文化   34篇
体育   486篇
综合类   2篇
文化理论   80篇
信息传播   217篇
  2023年   36篇
  2022年   73篇
  2021年   101篇
  2020年   156篇
  2019年   249篇
  2018年   297篇
  2017年   305篇
  2016年   231篇
  2015年   166篇
  2014年   151篇
  2013年   817篇
  2012年   157篇
  2011年   108篇
  2010年   99篇
  2009年   95篇
  2008年   88篇
  2007年   78篇
  2006年   74篇
  2005年   63篇
  2004年   52篇
  2003年   59篇
  2002年   46篇
  2001年   31篇
  2000年   24篇
  1999年   32篇
  1998年   30篇
  1997年   21篇
  1996年   34篇
  1995年   24篇
  1994年   26篇
  1993年   23篇
  1992年   13篇
  1991年   23篇
  1990年   16篇
  1989年   20篇
  1988年   20篇
  1987年   18篇
  1986年   8篇
  1985年   6篇
  1984年   11篇
  1983年   11篇
  1982年   9篇
  1981年   9篇
  1980年   7篇
  1979年   8篇
  1978年   8篇
  1977年   6篇
  1976年   8篇
  1975年   10篇
  1974年   6篇
排序方式: 共有4006条查询结果,搜索用时 15 毫秒
981.
This paper offers a comparative analysis of two characters belonging to the tradition of empowered “spinster” in children’s fiction, namely Mary Poppins and Ms Wiz, from the perspective of gender politics and child/adult interactions. A distinction is made between the figure portrayed in P. L. Travers’ texts and the Disney film starring Julie Andrews, which turned the magic nanny into a cultural icon. These two renderings of the powerful, single woman, in turn, are contrasted with Terence Blacker’s postmodern depiction of the good witch in the “Ms Wiz” series, with a view to tracing the evolution of the ostracised female wizard, a character inherited from folklore that has its origin in the Great Mother archetype. As is demonstrated, each representation of the supernatural woman modifies the manner in which the feminine influences the patriarchal order.  相似文献   
982.
The aim of this study was to examine the consistency or reproducibility of measuring cycling peak power in children and adults. Twenty-seven pre-pubertal girls and boys and 27 female and male physical education students (age 9.8 +/- 0.5 and 24.4 +/- 4.3 years, respectively; mean +/- s) participated in the study. All participants performed five tests over 15 days and underwent a habituation session before the study. Each test included four sprints against four different braking forces. We found that braking forces of 7.5% of body weight in children and 10% of body weight in adults were too high for most of the participants to elicit maximal cycling power. Unlike the children, the physical education students improved their performance between session 1 and session 2 (1025 +/- 219 vs 1069 +/- 243 W; P < 0.001). Therefore, to obtain reproducible measures of cycling peak power, a habituation session including a complete test protocol (i.e. warm-up plus three sprints) is highly recommended. When the protocol included three sprints in children and at least two sprints in adults, measurement of cycling peak power was found to be highly reliable (test-retest coefficient of variation approximately 3%). Finally, to avoid performance fluctuations, especially over several consecutive evaluations (e.g. longitudinal studies), it is necessary to maintain high motivation in children.  相似文献   
983.
984.
A review of the archival literature, including records and information management, indicates that archivists’ have shown over the last two decades an interest in program evaluation. The sparceness of the literature on the subject suggests a gap in an articulate body of knowledge, based on solid theoretical and methodological foundations, for evaluation of archival programs and activities. However, if they have not particularly investigated the subject from a theoretical perspective, archivists have developed in their different organizations and working environment practical knowledge of and experience with program evaluation. In large corporations as well as in public bureaucracies, they have been part of or subjected to specific or generic program evaluation initiatives conducted by internal and external evaluators. But archivists might need now to go some steps further and to look from a critical perspective at what is needed in order to get full benefit from program evaluation.  相似文献   
985.
986.
The article aims at critically discussing the role and position of a buffer agency from the point of view of some of its different tasks, viz. accreditation, quality audit, support of academic leadership and internal quality enhancement. The contribution seeks to illuminate the conflicting roles of a buffer organisation in the light of these tasks and pressures from the government and higher education institutions. It concludes that the different roles can support and complement each other, and that change is best accomplished by emphasising support in the early stages of the establishment of a national quality assurance system.  相似文献   
987.
A noncontingent experience affects the subsequent detection of positive and negative contingencies between the same events. Experiments 1 and 2 showed that such preexposure can produce both an impairment in the detection of subsequent positive contingency and a facilitation of a negative one, independent of the level of contingency during the contingent phase. Experiment 3 raised difficulties for a model that assumes that associations to the context can explain this asymmetrical effect. Experiment 4 suggested that the different weights usually assigned to the different types of trials when computing the contingency between events can change as a result of a noncontingent experience with the same events. This change supports an account of the asymmetrical effect by a belief revision model based on a mechanism that updates the weights of the different trial types as a function of previous experience. More generally, the belief revision model is a statistical (i.e., nonassociative) model of learning that is capable of accounting for trial-order effects, which have long posed problems for statistical models.  相似文献   
988.
Before a higher education institution can develop international impact and reputation, it must first have developed its regional impact and reputation. Universities can contribute to the creation of wealth in given regions in a number of ways, not the least of which is technology transfer, the creation of firms and other spin‐off activities, and the furtherance of the their reputations for excellence. Staff and students spend a good deal of money in such regions, thus increasing regional wealth, and if given institutions pursue entrepreneurial policies in regard to the course programmes that they offer, their graduates will not only find nearby employment but will create employment for others. The “Innova” Project of the Polytechnic University of Catalonia is an illustration of how a major regional university is attempting to apply new teaching models to enhance entrepreneurial culture in the Barcelona area of Spain and thereby to increase regional human capital.  相似文献   
989.
Self-narration has been discussed as a process of identity construction where a person, while telling her or his story and presenting herself/himself in relation to important people, creates a self-identity, in fact a version of self. This article is based on a study where pupils, aged 13-14, were asked to write and make drawings on the theme 'My future family'. The boys' stories are focused on here and the narratives are seen as reflecting the boys' ways of exploring a male identity through their main character. A group of the boys did write about odd or egocentric persons and used absurd ingredients and elements of the science fiction genre. These narratives are analysed in more detail and it is argued that the detached and humorous style opens up for writing about maleness without entering into familiarity.  相似文献   
990.
The purpose of this study was to determine the foot strike patterns (FSP), rearfoot position at initial contact (RPic, i.e., No INV/EVE) and foot rotation in children in relation to age. A total of 932 children aged 3 to 16 years participated in this study. A sagittal and frontal-plane video was recorded using a high-speed camcorder to analyse these variables. There is a significant increase (p < 0.001) of rearfoot strike patterns (RFS) prevalence in relation to age; e.g. preschool children (3–6 years old) displayed an RFS prevalence 46.65% and the adolescent population(15–16 years old) an RFS prevalence 92.20%. The total RFS prevalence in all samples was 69.25%. There was a significant reduction (p < 0.001) of prevalence of RPic in relation to age groups; preschool children displayed a prevalence of RPic 60.37% and the adolescent population 10%. There was a significant reduction (p < 0.001) of prevalence of no foot rotation in relation to age groups; preschool children displayed a prevalence of no foot rotation 48.95% and the adolescent population 13.55%. In conclusion, FSP in children are influenced by age. It is noteworthy that the RFS prevalence of children is lower in comparison to the adult population.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号